The Retainer and Rollers,bearing, cataloged under National Stock Number 3110-00-142-5878, is classified within Federal Supply Class 3110 (Bearings, Antifriction, Unmounted) of the Bearings group. The manufacturer of record is Timken Aerospace, Inc Dba Torrington Product. Government technical data includes 6 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3110-00-142-5878 |
| Primary Part Number | NTA3446 |
| Item Name | Retainer and Rollers,bearing |
| FSC / FSG | 3110 / 31 — Bearings, Antifriction, Unmounted |
| Manufacturer | Timken Aerospace, Inc Dba Torrington Product |
| Status | ACTIVE |
| Style Designator | RETAINER AND NEEDLE ROLLERS |
| Outside Diameter | 2.8650 INCHES NOMINAL IN |
| Bore Diameter | 2.1270 INCHES NOMINAL IN |
| Material | STEEL COMP 5140 ROLLER |
| Material | STEEL RETAINER |
| Retainer Piece Quantity | 2 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| NTA3446 PRIMARY | Timken Aerospace, Inc Dba Torrington Product (USA) |
| Reference | Meaning |
|---|---|
| 197228H1 | 5/9 Secondary reference Komatsu American Intl Co |
NSN 3110-00-142-5878 is a Retainer and Rollers,bearing, manufactured by Timken Aerospace, Inc Dba Torrington Product, classified under FSC 3110, Bearings, Antifriction, Unmounted. Status: active.
NSN 3110-00-142-5878 has 1 manufacturer part number on file: NTA3446 (Timken Aerospace, Inc Dba Torrington Product).
Key specifications for NTA3446: Style Designator: RETAINER AND NEEDLE ROLLERS; Overall Width: 0.0781 INCHES NOMINAL IN; Outside Diameter: 2.8650 INCHES NOMINAL IN; Special Features: IN LINE,THRUST TYPE. 6 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.